Type / Brand - Wika
Wika
Type / Brand - Wika
 
Description of control relay

Contact protection relays are used in type 821 contact devices. They increase the switching reliability and switching capacity of electromechanical contact devices and lower their contact voltage. Undesired switching operations of contact devices caused by vibrations are significantly reduced by a drop-out delay of 0.5 sec. On the side of the contact they operate with a lower control voltage, however, on the output side they can be highly loaded. Contact protection relays consist of a power supply unit, control unit, switching amplifier and relay output. The contacts are supplied by a control unit with 35 to 40 V clocked DC (i.e. only every hundredth switching occurs under voltage). This enables the optimum contact protection and switching reliability for millions of switching cycles.
 
See Believe Conductivity Controller

CCI 100 series conductivity meters are extremely versatile conductivity meters that can be used for a wide variety of applications. These meters offer extreme reliability and low c...

Wika Hand-held temperature calibrator

The model CEP3000 hand-held temperature calibrator is an ideal instrument to handle all your temperature calibration tasks in a rugged, inexpensive package. It combines virtually a...

Wika Monoflange for pressure measuring instruments

For connections to the process using connection flanges, the monoflange enables an optimal and compact measuring point assembly. In addition, stress from vibration, potential leak ...

See Believe Conductivity Controller

CCI 100 series conductivity meters are extremely versatile conductivity meters that can be used for a wide variety of applications. These meters offer extreme reliability and low...